Housing for cane-mills



N0. 6l5,59l. Patented Dec. 6, I898. B. THOENS.

HOUSING FUR CANE MILLS.

(Application filed Mar. 10, 1898.) (No Model.) 2 Sheets-Sheet I.

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Patented Dec. 6, I898.

No. 6|5,59l.

B. THIJENS.

HOUSING FORCANE MILLS.

(Application filed Mar 10, 1898.) (No Model.) 2 Sheets-Shoat 2.

UNITED STATES PATENT OFFICE.

BURCHARD THOENS, OF NEW ORLEANS, LOUISIANA.

HOUSING FOR CANE-MILLS.

SPECIFICATION forming part of Letters Patent No. 615,591, dated December 6, 1898.

" Application filed March 10, late Serial No. 673,411. (No model.)

To all whom it may concern.-

Be it known that I, BURCHARD THoENs, a subject of the Emperor of Germany, residing at New Orleans, in the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Housings for Cane-Mills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in cane-mills for grinding sugar-cane or the like; and it consists, essentially, in an improved housing or mounting for the mill, whereby great strength, simplicity, and cheapness are secured.

It also consists in certain details of construction and combination and arrangement of parts,that will be hereinafter described and claimed.

Reference is had to the accompanying drawin gs, in which the same parts are indicated by the same letters throughout the several views.

Figure 1 represents an end elevation of a mill mounted according to my invention, the cane-carrier and the bagasse-carrier being omitted as not forming a part of the invention proper. Fig. 2 represents a front view of the mill shown in end elevation in Fig. 1. Fig. 3 is a detail view showing my improved form of tie-brace for strengthening the housing and holding the rollers in their bearings; and Fig. 4: represents a central transverse section through the turn-plate, showing the housingin end elevation with the j ournal-bearings removed and the rollers and shafts indicated in dotted lines, with improved means for ad justing the turn-plate.

A represents the top roller, and A A represent the two bottom rollers, which are spaced in the usual manner, the front roller (seen at the left in Figs. 1 and 4) being spaced at a short distance from the upper roller and the rear roller (seen at the right in said figures) being set closer to the upper roller and the rollers revolving, as indicated in Fig. 1. The gearing for driving the rollers is the ordinary cogearing and is not a part of my invention. These rollers are provided with shafts a, which rotate in journal-bearings in the housing. The bearings for the upper recesses B have the two sides 12 and b at substantially right angles and are curved upwardly and outwardly, as at b and b to adn1it the ready passage into the recess of the roller-shaft a. These blocks K are lined up by means of the thin plates L or in any convenient way. To facilitate the insertion or removal of these plates L when it is desired to open out or close up the mill, screws R, passing through nuts 0* and bearing against the said blocks, may be provided, if desired. These screws are shown in dotted lines in Fig. 1 and may be mounted in the housing in any convenient manner.

It will be seen from an inspection of Figs. 1 and at that the fiat sides 11 of the recess 13 in the housing will take up the thrust on the shaft of the roller and that there will be very little tendency of the journal-blocks K to move laterally either to the right or left. Lateral motion inward is prevented by the bearing-surface b of the recess B while lateral motion outward is prevented by the tiebrace M. The tie-braces M have double crossshaped ends formed by pairs of lateral lugs m m on the ends thereof and other pairs of lateral lugs m m a short distance from the ends, thus leaving an intermediate neck m adjacent to each end, as seen most clearly in Fig. 3. The edge of the housing 13 is provided adjacent to the recesses 13 B with shallow longitudinal recesses at b b into which fit the necks m m of the tie-braces M, the pairs of lateral lugs m m abutting against the walls I) and b of the recesses 13 13 The cross-shaped ends on m of the tie-braces may fit into correspondingly-formed recesses in the edge of the housing, as shown at I) in Fig. 2, where recesses are provided for the upper ends of the said tie-braces; but where the housing is cut away for the sake of light ness, as at 13 13, (seen most clearly in Fig. 4,) the lateral lugs or projections on m upon the end of the tie-brace may simply'abut against the exterior wall thus formed, as shown at the lower ends of said tie-braces in Figs. 2 and 4. These tie-braces M are held in place by tap-bolts m there being, however, very little outward strain at any time on these bolts. Thus it will be seen that these tiebraces add considerably to the strength and rigidity of the mill-housing and at the same time insure easy access to the journal-bearings of the lower rollers. Thus these tiebraces when in position are parallel respectively to the sides 12 of the recess B whereby the journal bearing-block K may be moved upward and downward in its seat without disturbing its lateral adjustment.

P represents the turn-plate, which bears against the face of the front lower roller and scrapes therefrom any bagasse that would tend to adhere thereto and at the same time directs the bagasse into the space between the top roller and the back roller. This turnplate is mounted on the beam or bar P and is held between the wedges Q and the blocks T, mounted in the mill-housing, and is adjusted by means of screws Q and nuts and washers q and g on either side of the rib or plate S, fast to the mill-housing. By easing up on these screws the bar P can be raised or lowered and then clamped in the desired position. It will be obvious that one wedge only may be used, if desired, in that case the opposite side of the bar P being caused to bear directly against the corresponding block T.

The housing B is secured to the foundation 0 and E by means of bolts D and D.

It will thus be seen that I provide a cheap, strong, and simple housing adapted to withstand the high strains to which cane-mills are necessarily subjected in the process of eX- pressing the juice from the cane.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a three-roller mill, the combination with a mill-housing provided witha U -shaped recess for the upper roller, and two recesses oppositely disposed and. terminating at their lower sides in two faces at substantially right angles to each other for the lower rollers, of journal bearing-blocks mounted in said recesses, means for adjusting the position of the bearing-blocks for the lower rollers, the said housing also having shallow recesses formed in its sloping edges upon opposite sides of the recesses for the lower rollers and communicating with said recesses; tie-braces spanning the larger recesses, having crossshaped ends engaging-in said shallow recesses and having lateral lugs abutting against the opposite side walls of said recesses for the lower rollers; and bolts securing the ends of said tie-braces in said shallow recesses therefor, substantially as described.

2. In a three-roller mill, the combination of for the upper roller, and two recesses oppositely disposed for the lower rollers, the u pper portions of which are curved outwardly, and the lower portions of which terminate in plane faces at right angles to each other, of journal bearing-blocks mounted in said recesses, means for adjusting the position of the bearing-blocks for the lower rollers, the said housing also having shallow recesses formed in its sloping edges upon opposite sides of the recesses for the lower rollers and communicating with said recesses; tie-braces spanning the larger recesses, having crossshaped ends engagingin said shallow recesses and having lateral lugs abutting against the opposite side walls of said recesses for the lower rollers; and bolts securing the ends of said tie-braces in said shallow recesses therefor, substantially as described.

3. In a three-roller mill, the combination with amill-housing provided with a U -shaped recess for the upper roller, and two recesses oppositely disposed and terminating at their lower sides in two faces at substantially right angles to each other for the lower rollers, of journal bearing-blocks mounted in said recesses, the said housing also having shallow recesses formed in its sloping edges upon opposite sides of the recesses for the lower rollers and communicating with said recesses; tiebraces spanning the larger recesses, having cross-shaped ends engaging in said shallow recesses and having lateral lugs abutting against the opposite side walls of said recesses for the lower rollers; and bolts securing the ends of said tie-braces in said shallow recesses therefor, substantially as described.

4:. In a three-roller mill, the combination with a mill-housing provided with a recess in the upper portion thereoffor the upper roller, and two recesses oppositely disposed for the lower rollers, the upper portions of which are curved outwardly, and the lower portions'of which terminate in plane faces at right angles to each other, of journal bearing-blocks mounted in said recesses for the shafts of the rollers, the said housing also having shallow recesses formed in its sloping edges upon opposite sides of the recesses for the lower rollers and communicating with said recesses; tie-braces spanning the larger recesses, having cross-shaped ends engaging in said shal= low recesses and having lateral lugs abutting against the opposite side walls of said recesses for the lower rollers; and bolts securing the ends of said tie-braces in said shallow re-' cesses therefor, substantially as described.

5. In a cane-mill, the combination with a turn-plateand bar supporting same, of blocks secured in the housing, a wedge interposed between said bar and one of said blocks, and means for adjustably clamping said bar be tween said wedge and said block, substan= tially as described.

8. In a cane-mill, the combination with a turn-plate andbar supporting same, of blocks secured in the housing, Wedges interposed between said blocks and said bar, screws secured to said wedges with nuts for raising said screws and thus adjusting the said wedges and clamping said bar in the desired position, substantially as described.

In testimony whereof I aifix my signature in presence of two witnesses.

BURCHARD THOENS.

IVitnesses:

CHAS. M. II Do, J NO. J. WARD. 

